Hydrocarbon burner



- n tree rnEDsoHULz, or FRUITVALE, CALIFORNIA} HYDROCAB-BON BURNER.

To all whom it may concern: y

Be it known that I, F1mn SoHULZ, a

citizen ofthe United States, residing at the'vfuel admitted to the burner and the air forcombustion is capable of simultaneous proportionate variation or control.

.A further object is to provide a burner body divided by a Venturi plate adapted for adjustment aifordinga plurality of mixing chambers for the fuel and air; the area of which may be readilyvaried to obtain the mosteflicient results.

-' Another objecti s to provide an improved form of burner head enclosing" the burner body, and of' cylindrical or conical forma tion provldlnga maximum burner area and occupy ng a minlmum space.

andwherein an air supply for combustion isprovided centrally through the burner without being open to the gaseous fuel mixture, and to provide a novel formation of valve plate or control wherebythe operation thereof permits of the simultaneous varia tion or adjustment of the air admitted into the primary mixing chamber to intermixwith the fuel and the air admitted intothe secondary or combustion chamber to afford perfect combustion insuringthe properproportion of air for the respective purposes at all times.

With the above mentioned and other objects in view, the invention consists in the novel construction and combination of parts hereinafter described, illustrated in the accompanying drawings, and set forth in the claims hereto appended, it being understood that various changes in the form, propor Application filed my 20; 1921. Serial 1%; 486,285..

Amongfthe other objects are to provide a'construction wherein the back-firing of the, gaseous mixture to a point where the same ignites from the fe'ed'pipe is precluded;

Specification of Letters Patent. at t M 1922.

'llomore fully comprehend the invention,-

reference'is direc'tedto the, accompanying drawings, wherein A Figure 1 is a vertical sectionalview ofone' embodiment of my invention. f

Figure 2 is a transverse sectional view taken on line 2+2 of Figure 1, viewed inv the direction of the arrows. Referring more particularly to the drawings wherein like characters of reference designate corresponding parts, 1 indicates atubular burner body' ropen at its upper end as at 2, and the wall forming the lower end thereof being outwardly and clownwardly flared, as at 3, providing a primary,

mixing chamber of substantially conical formation. The inner surfaceof the wall forming the burner body 1 at a oint immediately above the chamber 4 is interiorly threaded as at 5, and receives a Venturi iilatedformed with a Vent-uri opening 7. e

The plate 6 divides the body 1 into the lower primary mixing chamber 4, mining-chamber 8. Tlus it will be' apparent that the plate 6 is adapted for vertical adjustment within the body 1 to vary the area of the respective chambers 4 and 8;and1toenable the adjustment of the plate within the body tovsuch a position as topreclud theback-firing of the gaseous mixture passing through the opening/Z. Adjacent its lower. end, and above the threads 5, the tubular burner body 11 is provided in its wall with one or more ports 9, and is also formed on its interior below said ports with an annular supporting flange 10, and on its 'outersurface above said ports with a laterally extending head supporting flange 'My improved burner head consists primarily in the tubular stem 12 provided at-its' lower end witlithe lateral channels 13, the-lower surface of which rest on the flange 10 when the stem 12 is inserted downwardly into the burner body l through its upper open end 2 with the channels 13 in register with the ports 9 aifordingan air passage through the channels 13 and stem 12.

1t Wlllb observed that the stem 1218 and the upper ofa diameter considerably less than the in V terior diameter of the body 1, and said stem is of such length as to space the perforated relatively flat top wall 1% thereof a slight distance above the upper open end 2 of the body 1. The portion 14 is preferably-of-annular formation, andfrom the edge thereof depends'a perforated skirt adapted to rest'in the suitable annular groove at the periphery of the flange 11.

t Wlll be observed 'that'the skirt 1,; and portion 14 provide a chamber 16v enclosing the upper end 2 of the body 1, and that said burner; is 01"? comparatively small diameter tutor great depth affording a considerable combustion space occupyingrelatively little area. Extending upwardly into the. pr1mary mixing chamber '14 and discharging axlally thereinto is a fuel supply nozzle 17 adapted to .be supplied preferably with gaseous fuel tronrany suitable'source, and the same affords a supporter mount tor the supportingplate 1 8 on which said burner body rests. (lo-operating with the plate 18 and positioned preferably beneath the same is 1 'valve plate 19 held in contact withtheplate.

18"by 'anu't 2O threadedonthe fuel su ply nozzle-17 below the flange 18" thereof. urrounding the burner body l and extending to a point at least'to the top of the burner head is 'a tubular shell 21 resting at its lower edge inside of a flange 22 extending upwardl fro'm'the plate 18, and said shell forms between the burner body 1 and its 'lIlIlBlf' 'SlllffflCG a combustion chamber through whichis admitted a controllable quantity of air to nsure proper combustion. The all control for the prlmary chamber I a ancl thebonibustion chamber 2?: is afforded through the double annular series of ports 24L and 24! t'ormed in" the" plate 18 respeo tivelyrat the'base ofthe" chamber 4: and'the chamber 23,-and withthis, series of parts co-act-similar ports 25 and 25 formed in p Figurefi; The adjustment of the plate '19 the valve plate-19, as clearly illustrated in axially "about the nozzle 17 causes the solid portion or the plate to fvary the effective area of the-[ports 2, l'and 2d, thereby'simultaneously controlling the air admitted into the "respective chambers 4; and 23". If desirable, "a bu'rner igniting devioe26 may be provided and extendthrough an opening 27 in the wall of the shell 21 at a point in close proximity to the burner head, hereby enabling a pilot flame to be maintained from whichthe igniting of the burner. is accomplished, on" gas 'beingadmitted through the nozzle or jet17. i

It will be observed thatfa portion of the air admitted into the combustion chamber passes through ports 9, channels 13 and into the-tubular stem 12 discharging centrally of the perforated'top 14L of the burner head insuring ample air to accomplish eflicient combustion. I 'Having thus described my invention, what I claimfas new and desire to secure by Letters Patent of the United States is '1. A gase'ousfuel burner including a tubular body provide dwith an interiorly threaded "portion, a burner head carried by the body, a fuel supply nozzle discharging .into the body, a Venturi plate having a threaded periphery anddisposed transversely withm and lower mixing chambers, said engaging 1 threads of the tubular body and plate affording an adjustment for said plate-longitudinally within said body to vary the relative areasof said chambers without varying the length of said body, and a valve control air. inlet for the lower chamber;

2, A gaseous fuelburnerincluding a tubular body, a burner head carried thereby and aranged to envelope one end thereof with a portion or" the burner extended "over the side of the tube, a a fuel supply nozzle discharg ing into the body a tubular shell surrounding the burner and affording a combustion chamber, and simultaneously controllable air inlet portsat'th'e baseof said body and combustioncha'mber,

A gaseous fuel burner including a tubuthe body dividing its interior into the upper lar body, a burner headcarried thereby, a

fuel supply'nozzle dischargingintothe body a tubular shell surounding the burner an aflo'rdinga combustion chamber, a plate supportingsaid body and shell and provided with a'series of ports, one communicating withthe lower end of said combustion chamber, and another with the base of said body allording separate air inlets therefor, and a ported'valve plate cooperating with said supporting plate and movable thereover'for.

simultaneously varying thearea of said-in i r Q r 1'00 4. gaseous fuel burner including a tubu lets.

la r body provided with'an aperture in its] wall, head fitted over, the upperendt hereofi and including a tubular stem extending cening into said body, a tubular shell surround ing the burner and affording a combustion chamber, and means for simultaneously controllingthe admission of air into the lower end of said body and into said combustion chamber, v v v I i 5. A gaseous fuel-burner including a tubularbody, a head fitted'overthe upper end thereof and formed -with a perforated top wall and a perforated skirt extending downwardly theretronrin spaced relation tothe upper end olithe' body and enclosing the same providing a chamber intO' Which said body "discharges, a fuel supply nozzle discharging into the lower end of the body, a

Venturi l plate disposed transversely within sald body dlvidlng the same Into'upper and lower mixing chambers, and means for controlling the admittance of air into the lower mixing chamber.

6. A gaseous fuel burner including a tubular body formed with a flared lower end affording a contractedthroat and provided adjacent to its'upper end with an annular flange, head enclosing the upper ,end of said body and provided with a perforated top wall and a perforated skirt extending downwardly therefrom and resting on said flange affording a chamber surrounding the upper end of the head and into which the same discharges, a. Venturi plate disposed transversely of the lower end of said throat charging axially into said burner mixing chamber, a tubular shell surrounding said body and extending above said head, and a valve for simultaneously varying the air volumeadmitted into said mixing chamber and into the combustion space aflorded between the body and shell.

In testimony whereof I have signed my name to this specification.

' FRED SCHULZ. 

